About Iso Speed - Canon EOS D30 User Manual

About ISO Speed

ISO speed is an index number representing the photosensitivity of silver-halide film. Digital
cameras do not use film, but their photosensitivity is commonly described in terms of "ISO
equivalent" speed settings. ( 132)
The higher the number, the greater the sensitivity. Higher speeds are better for taking pictures
of moving subjects or in dim light, but the pictures will also contain more noise and so will be
less sharp. Conversely, lower speeds are less suited to moving subjects or dim conditions, but
produce sharper, more detailed images.
The Canon EOS D30 provides ISO-equivalent speed settings from ISO 100 to ISO 1600, in
one-step increments.
You can set the ISO speed by pressing the
dial as you look at the LCD panel. (C.Fn-12-2
1
Select [ISO Speed].
Press the MENU button.
Turn the
then press the
2
Set the ISO speed.
Turn the
speed, then press the
The selected ISO speed is entered, and
the screen returns to the Menu.
Press the MENU button to clear the
screen and exit the Menu.
button and turning the
128)
dial to select [ISO Speed],
button.
dial to select the desired ISO
button.
3
or
55